NF-858C Product Description ItemSpecifics:Mian function: Trace and locate Test length: BNC, RJ45 Tracking Type: UTP / STP RJ45, BNC Other: Function: VFL & Memory Power: supply: 3.7V lithium battery Main features: PoE function: identify which pins are providing power and detect how much voltage . Identify telephone cable condition ( Tip or Ring) / polarity (anode or cathode). Easily trace and locate cables without AC Current noise. Hub blink for locating network port by the flashing port light on Hub / Switch. Measure cable length for Lan cable and Coax cable. Check open, short, cross for Lan cable and Coax cable. Benefits: Different scan modes, easily help locate target cable. Memory and storage function LCD Screen shows test result clearly Package Included: BNC-RJ11 Cable adaptor x 1 set RJ45 Cable adaptor x 1 set 8P extender adaptor x 1pc Cable clip x 1 set Charging adaptor x 1 set